Plantar fibromatosis is a condition that involves the formation of firm, fibrous nodules in the plantar fascia. These nodules are the result of the proliferation of fibroblasts, are benign, and do not require treatment unless they are painful. They are usually less than 3cm in diameter and a person may develop one or many, on one or both feet. Usually the distal two thirds of the plantar fascia is affected (the two thirds from the toes), typically in the central portion. Men are more often affected by this condition than men, with a typical age range of 50-70 years of age.
Diagnosis is usually made through signs, symptoms, visual inspection, and palpation. Painful nodules can be off-loading using insoles that accommodate the nodule and reduce the plantar pressures acting upon it. Surgery is indicated only for very painful nodules or cases where conservative treatment has not been successful, although these nodules often return even after surgical removal.